Synthesis and Hydrolytic Studies on the Air-Stable [(4-CN-PhO)(E)P(μ-N(t)Bu)]2 (E = O, S, and Se) Cyclodiphosphazanes

Yan X Shi; Rong Z Liang; Katherine A Martin; Nicholas Weston; Silvia Gonzalez-Calera; Rakesh Ganguly; Yongxin Li; Yunpeng Lu; António J M Ribeiro; Maria J Ramos; Pedro A Fernandes; Felipe García

doi:10.1021/acs.inorgchem.5b00735

Synthesis and Hydrolytic Studies on the Air-Stable [(4-CN-PhO)(E)P(μ-N(t)Bu)]2 (E = O, S, and Se) Cyclodiphosphazanes

Inorg Chem. 2015 Jul 6;54(13):6423-32. doi: 10.1021/acs.inorgchem.5b00735. Epub 2015 Jun 12.

Affiliations

¹ †School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371.
² ‡Chemistry Department, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
³ §Department of Chemistry and Biochemistry. Faculty of Sciences, University of Porto, Rua do Campo Alegre, S/N, 4169-007 Porto, Portugal.

PMID: 26068578
DOI: 10.1021/acs.inorgchem.5b00735

Abstract

Reaction of 4-CN-PhOH with [ClP(μ-N(t)Bu)]2 (1) (2:1 ratio) in the presence of Et3N produced the functionalized cyclodiphosph(III/III)azane [(4-CN-PhO)P(μ-N(t)Bu)]2 (2). Oxidation of 2 produced cyclodiphosph(V/V)azanes [(4-CN-PhO)(E)P(μ-N(t)Bu)]2 [E = O (3), S (4), and Se (5)]. This is the first example of a series of cyclodiphosph(V/V)azane derivatives obtained from a single cyclophosph(III/III)azane precursor where all the accessible chalcogen oxidized products are air-stable over prolonged periods of time.